There isn't any way to manually select where the air is directed. Heat goes to the floor, cooling air to the face level vents. If you want the heated air on the windshield, select defrost.
Econ is just the A/C off button. The A/C is on all the time by default. You can't select Econ when the front defroster is being used.
Econ is just the A/C off button. The A/C is on all the time by default. You can't select Econ when the front defroster is being used.